Transcription of W. S. TYLER ASTM Sieve Chart and TYLER Equivalents
1 W. S. TYLER TYLER All rights on any kind of reproduction, in whole or part, Sieve Chart and TYLER EquivalentsSTANDARD (a )ALTERNATIVEMMIN (APPROX. Equivalents )MMIN (APPROX. Equivalents )125 mm5 mm4 in. (b) mm3 1/2 mm3 mm2 1/2 mm2 in. (b) mm1 3/4 mm1 1/2 mm1 1/4 in. (b) mm7/8 mm3/4 mm5/8 mm1/2 in. (b) mm7/16 mm3/8 mm5/16 1/2 mm1/4 in. (b) mmNo. 3 1/2 (c) 1/2 mmNo. mmNo. mmNo. mmNo. mmNo. Mesh mmNo. mmNo. mmNo. mmNo. mmNo. Mesh850 umNo. Mesh710 umNo. Mesh600 umNo. Mesh500 umNo. Mesh425 umNo. Mesh355 umNo. Mesh300 umNo. Mesh250 umNo. Mesh212 umNo. Mesh180 umNo. Mesh150 umNo. Mesh125 umNo. Mesh106 umNo. Mesh90 umNo. Mesh75 umNo. Mesh63 umNo. Mesh53 umNo.
2 Mesh45 umNo. Mesh38 umNo. Mesh32 umNo. umNo. umNo. SCREEN SCALE EQUIVALENT DESIGNATIONSIEVE DESIGNATIONSIEVE OPENINGNOMINAL W IRE DIAMETER(b) These sieves are not in the f ourth root of 2 Series, but they have been included because they are common usage(c) These numbers (3 1/2 to 400) are the approximate number of openings per linear inch but it is pref ered that the Sieve be identif ied by the standard designation in millimeters or um. 1000 um = 1 mm(a) These standard designations correspond to the values f or test sieves apertures recommended by the International Standards Organization Geneva, Sw itzerla
